I had originally planned to group Verdant Wind with Azure Moon like with Kostas but because of several story changes that concern Acheron's place, it would've gotten messy for a single chapter.
Chapter 14 Garreg Mach (The Alliance Leader's Ambitions)
Acheron: So Professor you're alive after all these years, I thought you had gone into hiding after that dreadful battle five years ago. But one call from opportunity has you scrabbling back.
Meanwhile House Riegan and Goneril have declared my territory too valuable and been watching it carefully. It's been utterly dreadful all this fighting on my territory and what do I have to show for it?
Now the Riegan brat is the head of the Alliance and dragged me here! But uh, obviously I am honored to stand by our brilliant leader!
Chapter 15 Garreg Mach (Valley of Torment)
Acheron: Oh yes I am very familiar with Judith, my personal bane. She's the one who's been keeping Wallasey territory on a chain. Now she has me marching to the Valley of Torment. (Sigh) Perhaps if this next battle goes poorly I can sneak away to the Empire and-
Oh it's nothing Professor, just a little joke during these trying times!
Chapter 16 Garreg Mach (The Rose-Colored River)
Acheron: Our next battle will be at the Great Bridge of Myrddin, Wallasey territory. The Empire no doubt wants control over the territory to enter the Alliance.
Byleth(Option 1): I'll keep them from taking it. (Support up)
Byleth(Option 2): Are you planning to hand it over?
Acheron(Option 1): Ha! You think you alone can stop the Empire? That's cute. Well the sentiment is appreciated.
Acheron(Option 2): That would mean betraying the Alliance for her Majesty's favor. That...
Regardless as long as the Alliance has power in Fodlan I'll be holding my stake in it.
Chapter 16 Mission (The Rose Colored River)
Vs Ladislava
Ladislava: Acheron Von Wallasey, I see so have you come to align house Wallasey with the Empire
Acheron: I'm afraid not, this bridge resides on Alliance territory more precisely Wallasey territory, and I won't be handing it over so generously.
Ladislava: If that's your decision so be it, I'll just take it by force then!
Chapter 17 Garreg Mach (Blood of the Eagle and Lion)
Acheron: Well now that the Myrddin bridge is secure Claude has returned control over Wallasey territory back to me, however he and Judith are still questioning my loyalty! Me! Honestly.0
I risk my life bravely and selflessly fighting on front lines, meanwhile other lords in the Alliance are content to simply send their aid. I deserve a statue for my hard work, or a few poems of my achievements!
Chapter 18 Garreg Mach VW (The Rose Golden Scheme)
Acheron: Ah Fort Merceus. A beautiful pinnacle of the Empire's strength! It would make a fine addition to House Wallasey if I play my cards right.
That is of course if I survive our grand leaders absurd plans. Dressing up as Imperial soldiers and just walking into the fort? How childish as if that would work!
Chapter 19 Garreg Mach (The Chaos of War)
Acheron: Well now Professor it seems the war is nearing its end. Somehow that Claude has managed to lead the Alliance to the gates of Enbarr itself!
Byleth(Option 1): Claude has become a fine leader.
Byleth(Option 2): It's not over yet.
Acheron(Option 1): Well I suppose, he has proven to be more capable than I'd care to admit.
Acheron(Option 2): Oh please the Empire is on its last legs, it will be a simple matter.
After all is said and done there will be many territories to remap. Hopefully after all my hard work I'll be rewarded for my selfless efforts.
Chapter 21 Garreg Mach (The City Without Light)
Acheron: After Enbarr fell I thought the war would be over! I was just about to start the trip for my castle when Judith grabbed and pulled me back! Who are these good for nothings that are keeping us?
Whoever they are they should know better to challenge Acheron Von Wallasey!
Chapter 22 Garreg Mach (Fodlan's New Dawn)
Acheron: I heard Count Gloucester turned tail and ran away! Ha! I knew he was a coward!
If I defeat the King of Liberation myself my name will be known across the land! The Wallasey House will be revered for generations!
However uh, he did defeat General Holst himself. That could be a problem. So Professor I will give you the honor of assisting me on my noble mission. I will ensure they write a footnote about you when my tale is retold.
Ending
The Rusted Weathervane
Acheron
Within the new United Fodlan Acheron wasted little time in attempting to raise the status of house Wallasey. While he would fail in his obsessive attempts for land, he would gain recognition for his unrelenting stances on various trade policies, often giving power to large merchant groups.
Trying to find that balance between clear weasel, and half decent person with Acheron.